Use generated keypair for broadcast side-car

broadcast.tf

@@ -2,11 +2,24 @@ resource "aws_instance" "broadcast" {
   count           = var.broadcast_enabled ? 1 : 0
   ami             = "${data.aws_ami.image.id}"
   instance_type   = "t3.medium"
-  key_name        = "jamulus"
+  key_name        = "${aws_key_pair.generated_key.key_name}"
   security_groups = [aws_security_group.ssh.name, aws_security_group.broadcast.name, aws_security_group.node-exporter.name] # Add your own IP to this group
 
   provisioner "local-exec" {
-    command = "sleep 30 && ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -u ubuntu -i '${self.public_ip},' --private-key ${"${path.module}/jamulus.pem"} broadcast-install.yml"
+    command = <<-EOT
+      echo '${tls_private_key.jamulus.private_key_openssh}' > ${aws_key_pair.generated_key.key_name} &&
+      chmod 600 ${aws_key_pair.generated_key.key_name} &&
+      sleep 30
+    EOT
+  }
+
+  provisioner "local-exec" {
+    command = <<-EOT
+      ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -u ubuntu \
+      -i '${self.public_ip},' \
+      --private-key "${path.module}/${aws_key_pair.generated_key.key_name}" \
+      broadcast-install.yml --extra-vars 'ec2_id=${self.id}'
+    EOT
   }
 
   tags = {